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478
RESULTS

Media Type
302
texts
157
audio
12
movies
4
software
3
images
Availability
478
Always Available
Year
63
2018
79
2017
4
2016
11
2015
10
2014
7
2013
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Topics & Subjects
201
NASA Technical Reports Server (NTRS)
142
Aantrekkingskrag
142
Academy of Sciences
142
Acts
142
Afstandsberekening
142
Albert Einstein
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Collection
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Creator
201
nasa technical reports server (ntrs)
142
netradiosa
4
kenneth udut
3
harvard college observatory
2
american astronomical society, university of chicago
2
james welton
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Language
304
English
142
Afrikaans
1
Danish
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